The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2015
Filed:
Dec. 17, 2012
Applicant:
Mann+hummel Gmbh, Ludwigsburg, DE;
Inventors:
Arndt-Udo Rolle, Stuttgart, DE;
Frank Ehlen, Neunkirchen, DE;
Kathrin Lichtenwalter, Gerlingen, DE;
Jochen Linhart, Schwaikheim, DE;
Nadine Dietsch, Ilsfeld, DE;
Assignee:
Mann+Hummel GmbH, Ludwigsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 50/00 (2006.01); B01D 39/14 (2006.01); B01D 39/06 (2006.01); B01D 39/20 (2006.01); B01D 24/00 (2006.01); B01D 46/52 (2006.01); B01D 35/00 (2006.01); B01D 37/02 (2006.01); B01D 27/06 (2006.01);
U.S. Cl.
CPC ...
B01D 46/528 (2013.01); B01D 35/005 (2013.01); B01D 37/025 (2013.01); B01D 27/06 (2013.01); B01D 2201/0415 (2013.01);
Abstract
A filtering device features a ceramic filter body for filtering a fluid flow, the filter body consisting of a wavy layer and a flat layer and the wavy and flat layer being wound in a spiral-shaped manner. The wave length of the waves increases from the inside to the outside with increasing distance to the longitudinal axis of the filter body such that the wave troughs and the wave peaks of at least two radially adjacent windings each lie on a common radial plane.